The SEO metrics that matter
| Metric | What it tells you | Where to find it |
|---|---|---|
| Impressions | How often your pages appear in Google results | Search Console |
| Clicks | How many visits come from Google search | Search Console |
| CTR (click-through rate) | Clicks ÷ impressions: how appealing your result is | Search Console |
| Average position | Where you typically rank for a query | Search Console / rank tracker |
| Organic sessions | Visits from organic search | Google Analytics 4 |
| Conversions / leads | Enquiries, calls, sales from organic visitors | GA4 key events, CRM |
| Indexed pages | How many of your pages Google has stored | Search Console |
| Backlinks / referring domains | Growth in sites linking to you | Ahrefs, Semrush, Moz |
| Map pack rankings | Local visibility | Local rank tracker, Business Profile insights |
How to calculate SEO ROI
SEO ROI = (revenue from organic search − cost of SEO) ÷ cost of SEO × 100.
Example: if SEO costs R8,500 a month and brings 10 extra leads, 3 of which become customers worth R12,000 each, monthly revenue is R36,000 and ROI is (36,000 − 8,500) ÷ 8,500 ≈ 324%. Because SEO results build over time, measure ROI over 6 to 12 months. Try our SEO ROI calculator.
What a monthly SEO report should include
- Organic leads and conversions compared with last month and last year
- Clicks, impressions and CTR trends
- Ranking movement for priority keywords
- Work completed and its purpose
- Issues found and next month's plan
Questions answered
How do you measure SEO success?
Track impressions, clicks, rankings and, most importantly, organic leads and revenue over time, comparing month-on-month and year-on-year.
What are impressions in SEO?
An impression is counted each time your page appears in a user's search results, whether or not they click.
What is CTR in SEO?
CTR (click-through rate) is the percentage of people who click your result after seeing it: clicks divided by impressions.
What is a good CTR for SEO?
It varies by position and search type. Position one often earns well above 20%, while page-two results get very few clicks. Compare your CTR with pages at similar positions.
What KPIs should I track for SEO?
Organic conversions, organic sessions, clicks, impressions, CTR, keyword rankings, indexed pages and referring domains.
How do you calculate ROI for SEO?
Subtract the cost of SEO from the revenue it generated, divide by the cost and multiply by 100 for a percentage.
What is average position in Google Search Console?
The average ranking of your site for a query or page across all the searches where it appeared.
How do I track keyword rankings?
Use Google Search Console for free average positions, or a rank tracker (Semrush, Ahrefs, SE Ranking) for daily tracking by location and device.
What are SEO metrics?
SEO metrics are measurements of search performance, such as rankings, traffic, CTR, backlinks, Core Web Vitals and organic conversions.
Why did my SEO traffic drop?
Common causes are Google core updates, technical errors (noindex, redirects), lost backlinks, seasonal demand, stronger competitors or AI features answering the query directly. Compare Search Console data before and after the drop.